jframe

So far we have been in touch with the Java command line, but in order for the user to use, there must be a graphical interface, so this chapter is mainly about how to use the GUI (graphical user interface)Create a gui:javax.swing.*the layout-related content in this chapter is the content of the javax.swing package, the common components are jframe,jbutton,jradiobutton,jcheckbox,jlabel,jlist,jscrollpane,jslider,jtextarea,j Textfield,jtable, etc.Create

() { UserDAO userDao = UserDaoFactory.getUserDAO(); return userDao.getAllUsers(); }} Presentation Layer: UserAddPanel class: /** UserAddPanel. java ** Created on _ DATE __, _ TIME _ */package cn. hncu. app. ui; import javax. swing. JFrame; import javax. swing. JOptionPane; import cn. hncu. app. business. ebi. userEbi; import cn. hncu. app. business. factory. userebifacloud; import cn. hncu. app. vo. user;/***** @ author _ USER _ */pub

JAVA's fifth job and java's fifth job If you do not understand it, please refer to the import java. awt. color; import java. awt. borderLayout; import java. io. file; import java. awt. container; import java. awt. event. actionEvent; import java. util. arrayList; import java. util. list; import javax. swing. JComboBox; import javax. swing. JFrame; import javax. swing. JLabel; import javax. swing. JList; import javax. swing. JPanel; import javax. swing

1. Create a normal formFirst, create a simple interface, which uses BorderLayout and places 5 jbuttons in it, as shown in the following code,Public class ShapedFrame extends JFrame { Private static final long serialVersionUID =-2291343874280454383L; Private JButton centerButton = new JButton ("Center "); Public ShapedFrame (){Super ("Shaped Frame ");Setdefaclocloseoperation (JFrame. EXIT_ON_CLOSE );InitUI (

The last introduction of a single button drag principle, today to a joint operation, the implementation has been thought to create a listenerError, add to the various components, the result of yesterday night accidentally came up with a solution. And it's the super-simple kind, alas.！ Sometimes it's not a good thing to think more.Drag a single component: http://www.cnblogs.com/Ruby517/p/6507001.html　　In fact, you want multiple components to be able to respond to drag events. Then write them a pa

Package com.swing;Import java.awt.*;Import javax.swing.*;public class SWING01 extends jframe{/*** 1. What is Swing* Swing is the ui--of the Java platform and it acts as a software that handles all interactions between users and computers. It actually acts as an intermediary between the user and the computer.** 2.Swing Bag* Java.lang.Object--->java.awt.component-->java.awt.container-->java.swing.jcomponent** 3. Components* 1.JFrameJFrame is the main wi

The previous article explains JFrame, JPanel, which already involves the use of empty layouts. While Java can pinpoint components in pixels, there will be some display differences in different systems, so that the display is not the same, so Java provides a layout manager to make the graphical interface written with good platform independence. Note: All layout managers are used for containers, including top-level containers and intermediate containers

The applet currently does not have a dialog function, only the most basic login, the function of displaying the chat recordLogin interfaceImport Javax.swing.JFrame;Import Javax.swing.JLabel;Import Javax.swing.JButton;Import Javax.swing.JTextField;Import Javax.swing.JPasswordField;Import Javax.swing.JPanel;Import Java.awt.GridLayout;Import Java.awt.BorderLayout;Import Java.awt.FlowLayout;public class Qqlogin extends jframe{Private JLabel Labuser; User

Complete the successful compilation D:\test\Console.java todayImport javax.swing.*;Import java.awt.event.*; Public class Console { public static string title (Object o) { String T=o.getclass (). toString (); if (T.indexof ("class")!=-1) T=t.substring (6); return t; } public static void run (JFrame frame, int width,int height) { Frame.setdefaultcloseoperation ( Jframe.exit_on_close); Frame.setsize (width, height); Frame.setvisible (TRUE); }

can be flowlayout.left,flowlayout.center,flowlayout.right.3.FlowLayout (int aligment,int horz, int vert), set alignment, and set the horizontal spacing between the components Horz and vertical spacing vert, using the Superclass container Method SetLayout () to set the layout for the container. For example, code setlayout (New FlowLayout ()) sets the FlowLayout layout for the container. The method of adding a component to a container is add (component name). Two. BorderLayout layout (default la

Four types of information balloon in Java tags (space-delimited): Java Four ways to eject a pop-up balloon in Java:confirmdialog-Confirmation dialog box, the user clicks "YES" or "No"inputdialog-Enter a cue boxmessagedialog-Information Balloonoptiondialog-combination of the remaining three frame bodiesExample:Confirmdialog:Joptionpane.showconfirmdialog (New JFrame (). Getcontentpane (),"User name is registered. "," System Information ", Joptionpane.y

GUI programming--Primary articles I. Introduction to the ELEMENTS 1.JFrame class: 1 Concept: Its strength is called a window, belonging to the bottom of the container, you can directly interact with the operating system. 2) commonly used methods: A.jframe () method to create an untitled window B.jframe (Strings) method creates a window with the title s C.public voidsetvisible (BOOLEANB) Settings window is visible D.public void Dispose () to undo th

interface elements, they differ in important ways: AWT relies on the main platform to draw user interface components, and swing has its own mechanism to draw and manage the interface component in the window provided by the main platform. The most obvious difference between swing and AWT is the look and feel of the interface components, and AWT runs the same program on different platforms, and there may be some differences in the appearance and style of the interface. However, a swing-based appl